Writing instrument head



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a perspective view of a second embodiment of my new design.

The structure depicted by means of broken lines in FIGS. 1 through 8 hasbeen provided for illustrative purposes only and forms no part of theclaimed design.

The ornamental design for a writing instrument head, as shown anddescribed.